Recent forecasts from Météo-France and supporting models indicate a highest temperature in Paris on August 27 most likely near 27°C, as a southwesterly flow brings mild air under increasing cloud cover and scattered showers or thunderstorms. Ensemble guidance shows modest spread around this value, with afternoon peaks potentially reaching 28°C if breaks in cloud allow greater insolation, or falling to 26°C if heavier rain arrives earlier and suppresses heating. This aligns with the market-implied probabilities favoring 26–28°C outcomes and reflects typical late-August variability, where daily highs average about 24°C but recent days have trended warmer before the incoming unsettled pattern. Updated high-resolution runs and official bulletins expected overnight will further refine the maximum.